Medieval Army

seems to be some kind of carriage because there is wheels, but I don't know how a horse could carry that, the modern army must have advanced technology, maybe this thing moves on its own with some source of power, we think the barrel shoots arrows, but we don't know. we think they far to advanced for arrows, they probably have flying machines. *the medieval army is sending tanks, helicopters, and soldiers with guns over the hill* THEY ARE HERE!!! GET READY THE FUTURE ARMY HAS COME FOR US!!!!!!!!